Fill in the response.  -- What are the different spellings?. -- However, because this spelling had been abandoned since Phillips (1871), "Pliosaurus" should be preserved according to Article 33.3.1 of the ICZN.. -- Are there any other interesting aspects about this article?. -- The generic name is derived from πλειων, "pleion", meaning "more" and σαυρος, "sauros", meaning "lizard" in Ancient Greek, in reference to Owen' belief that "Pliosaurus" was more closely related to "saurians" (including crocodilians) than "Plesiosaurus" was.. -- What about the other names?. -- 
The etymology of the specific name was not specified, but it probably refers to the shorter teeth of "P. brachydeirus" compared to teeth of other species then referred to "Plesiosaurus".